Edible corn protein-based food packaging material and preparation method for same

A technology of food packaging and zein, applied in the field of food packaging materials, can solve problems such as far from reaching industrialized production, complex processes, and harsh synthesis and preparation conditions

Inactive Publication Date: 2017-04-19
JILIN AGRICULTURAL UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the published literature reports, there is no relevant electrospinning method to prepare zein-based functional materials for application in the field of food packaging (embedding), and there is no report on the simultaneous embedding preparation of corresponding functional factors and pr

Method used

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  • Edible corn protein-based food packaging material and preparation method for same
  • Edible corn protein-based food packaging material and preparation method for same
  • Edible corn protein-based food packaging material and preparation method for same

Examples

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preparation example Construction

[0029] The present invention at first provides a kind of preparation method of edible zein-based food packaging material, and this method comprises:

[0030] Step 1: Mix biomacromolecules / macromolecular materials with entanglement points with a solvent to obtain a mixed solution;

[0031] Step 2: Inject the mixed solution obtained in Step 1 into the reaction pusher, maintain a fixed push flow rate of 0.5-50mL / h, and the electrospinning voltage is 5-50kV. The positive electrode of the voltage is connected to the outlet metal of the reaction pusher, and the negative electrode is connected to On the yarn taker connected to the earth, the distance from the outlet metal of the reaction pusher to the yarn taker is 5-50cm, and the electrospinning time is 0.5-24h, and the zein-based food packaging material is prepared.

[0032] According to the present invention, the biomacromolecule / and the macromolecular material with entanglement points are mixed with solvent and water, preferably ...

Embodiment 1

[0038] Weigh 1g of polyethylene oxide, add 99g, that is, 115.5mL of solvent ethanol and water, the final solution concentration is 1wt%, and magnetically stir it for 24 hours to make it completely mixed and ready for use. Inject the uniformly mixed solution into the reaction pusher, maintain a fixed push flow rate of 2mL / h, and the electrospinning voltage is 20kV. The positive pole of the voltage is connected to the outlet metal of the reaction pusher, and the negative pole is connected to the wire take-up connected to the ground. To ensure the safety of personnel and equipment, the distance from the outlet metal of the reaction pusher to the take-up device is 8cm, and the electrospinning time is 1h, and the zein-based food packaging material is prepared.

Embodiment 2

[0040] Weigh 10g of polyethylene oxide, add 87g, that is, 105mL of solvent ethanol and water, the final solution concentration is 10wt%, and magnetically stir it for 24 hours to make it completely mixed and ready for use. Inject the uniformly mixed solution into the reaction pusher, maintain a fixed push flow rate of 2mL / h, and the electrospinning voltage is 20kV. The positive pole of the voltage is connected to the outlet metal of the reaction pusher, and the negative pole is connected to the wire take-up connected to the ground. To ensure the safety of personnel and equipment, the distance from the outlet metal of the reaction pusher to the take-up device is 8cm, and the electrospinning time is 1h, and the zein-based food packaging material is prepared.

[0041] figure 1 Scanning electron microscope picture of the edible zein-based food packaging material prepared in Example 2 of the present invention; figure 1 It shows that the preparation of defect-free gliadin-based pack...

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Abstract

The invention provides edible corn protein-based food packaging material and a preparation method for the same and belongs to the technical filled of food packaging material. In the method, biamacromolecules/and high polymer material having nodal points and solvents are mixed to achieve mixed solution; then the mixed solution is injected into a reaction impeller; constant impelling flow speed of 0.5-50mL/h is maintained; static spinning voltage is 5-50kV; a positive electrode of voltage is connected to an outlet metal part of the reaction impeller; a negative electrode is connected to a filament receiver connected to the ground; a distance between the reaction impeller outlet metal part and the filament receiver is 5 to 50cm; the static spinning time is 0.5 to 24hours; and with the above steps, the corn protein-based food packaging material can be prepared. The invention further provides edible corn protein-based food packaging material prepared by the method. The preparation method is simple, raw material can be easily achieved and no harm is caused to human bodies; and demands of edibility, greenness and environment protection for packaging material can be met.

Description

technical field [0001] The invention belongs to the technical field of food packaging materials, and in particular relates to an edible corn protein-based food packaging material and a preparation method thereof. Background technique [0002] Zein forms an antiparallel structure with hydrogen bonds. The amino acid composition of Zein is relatively unique, and the molecules are connected by hydrophobic bonds, hydrogen bonds and limited disulfide bonds. It contains proline, leucine and Strong hydrophobic amino acids such as alanine and a small amount of polar amino acids such as glutamine, asparagine and glutamic acid lack basic and acidic amino acids, resulting in the unique solubility of zein. [0003] Liu Jian (Liu Jian, Wu Jingjing, Li Na, et al. Preparation of scaffold materials for periodontal tissue engineering with zein [J]. Chinese Tissue Engineering Research and Clinical Rehabilitation, 2010,15(14):7873-7877.) etc. using maize Prolamin preparation of scaffold materi...

Claims

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Application Information

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IPC IPC(8): D01D5/00B65D65/46
CPCB65D65/463D01D5/0015Y02W90/10Y02A40/90
Inventor 刘景圣李云琦张浩闵伟红张大力习士霞郑明珠蔡丹许秀颖修琳曹勇刘回民赵城彬刘惠麟王浩
Owner JILIN AGRICULTURAL UNIV
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